Fuel-feeding mechanism for internal-combustion motors.



No. 774,034. PATENTED NOV. 1, 1904;

A. E. BRILLIE. FUEL FEEDING MECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLIOATION FILED IAN. 19, 1904.

NO MODEL. 6 SHEETS-SHEET 1.

SWILIUC l I No. 774,034. PATENTED NOV. 1', 1904..

A. E. BRILLIE. FUEL FEEDING MECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED JAN.19, 1904.

N0 MODEL. V 6 SHEETS-SHEET 2.

No. 774,034. PATENTED NOV. 1,1904.

A. B. BRILLIE. FUEL FEEDING MECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLIOATION FILED JAN.19, 1904.

N0 MODEL. GSHEBTS-SHEET 3.

Fig. 4.

PATENTED NOV. 1, 1904.

A. E. BEILLIE. FUEL FEEDING MECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED JAN.19, 1904.

6 SHEETS-SHEET 4.

N0 MODEL.

PATENTED NOV. 1,1904.

A. E. BRILLIE. I'UEL FEEDING MECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED JAN. 19, 1904.

' 6 SHEETS-SHEET 5.

up MODEL.

No. 774,034. PATENTED NOV. 1, 1904. A. B. BRILLIE. FUEL FEEDINGMECHANISM FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED 3111.19, 1904.

N0 MODEL. 6 SHEETS-SHEET 6.

Illllll 3 No. 774,034. I

UNITED STATES Patented November 1, 1904.

PATE T OFFICE.

AUGUSTE EUGENE BRILLIE, oE PARIS, FRANCE.

. FUEL-FEEDING MECHANISM FOR INTERNAL-COMBUSTION MOTORS.

SPECIFICATION forming part of Letters Patent No. 774,034, datedNovmben-l, 1904. Application filed January 19,1904. SerialNo. 189,720.(No model.)

To all whom it may concern:

Be it known that I, AUGUSTE EUGENE BRILLIE, of No. 20 Avenue Bosquet,Paris, France, have invented a certain new and useful ImprovedFuel-Feeding Mechanism for Internal-Combustion Motors; and I do herebydeclare the following to be a full, clear, .and exact description of theinvention, such as will enable others skilled in the art to whichitappertains to make and use the same.

This invention refers to an apparatus for distributing liquid whichallows of the attainment of a continuous supply in measured quantitiesof liquid hydrocarbon in the airinlet of the motor.

The apparatus is specially adapted for motors in which the indraft takesplace at regular' intervals.

In the accompanying drawings, Figure 1 illustrates diagrammatically theinvention embodied in a complete installation. Fig. 2 is a detail of aportion of Fig. 1. Fig. 3 is a vertical section on the line A A of Fig.7. Fig. 4 is a vertical section on the line B B of Fig. 7. Fig. 5 is avertical section on thelineCG of Fig. 7 Fig. 6 is a vertical section onthe line D D of Fig. 7. Fig. 7 is a sectional plan on the lineE E E ofFig. 3. Fig. 8 is an end view of the operating-shaft, and Fig. 9 is agraphic representation of the principle of operation.

In Fig. l the motor m produces by any known arrangement oftransmission-gear I) 6 (chain, belting, gearing, toothed or equivalent)the rotation of the shaft a of the dis.- tributing apparatus 0. Thisshaft operates by cams or eccentrics two or more pumps adapted to insurea continuous flow and which receive the liquid from the reservoir r andforce it through an orifice f into the air-inlet pipe d of the motor inmeasured quantities according to the speed of the motor and theconditions of'working under which it operates. The liquid can be forcedto f in different ways. It can, for example, as is shown in Fig. 2, bedelivered into a pipe h, which is a branch of the air-intake d, in whicha valve or diaphragm g causes an obstruction, which insures a suflicientdraft of air past f.

r The carbureter or distributer comprises a pump with two or morepistons, with or without stuffing-boxes and with or without valves,operated by cams or eccentrics, &c. One of these arrangements is shownas a representa tive example in Figs. 3 to 7 of the drawings. Thiscarbureter is characterized by the employment of two pumps without gear,which work although there may be loose fit of the pistons in thecylinders" of the pumps, this being rendered possible by the liquidcoming with a small head from the float-reservoir 12, Fig. 5, andescaping by the delivery-passage. 7, ar-

it may not tend to pass between the pistons and the cylinder-sufaces andoverflow at the top. Also the place of carburizationfof Figs. 1 and 2 isarranged a little above the lower portion of the pumps withoutobstructing the passage in order that the pressure on delivery may bereduced to a minimum and under any circumstances be less than the headof the liquid, which would cause leakage between the pistons and thecylinder-surfaces.

- ranged in'a manner to be pnesently described.

- The slide-valves 2 are represented as semicylindrical and arecontained within a plungerrod 3 of thesame diameter, in which,by meansof a spring 4, they are pressed against the walls in the neighborhood ofthe orifices.

At 9 and 10 there are passages closed by cone-ended screws, whereby theapparatus may be emptied of liquid.

The pistons 1 and slide-valves 2 and 3 are operated by cams 14 and 13.(With three or six pumps the operating may be effected by eccentrics.)

In the case we are considering the cams are so arranged that for eachpump the time occupied by the delivery is longer than that taken tocomplete a half-revolution of the driving-shaft 15, and inconsequencethe suction takes less time than a half-revolution. The movements of thetwo piston are, respectively, not constrained to time with ahalf-revolution. Under these conditions the one pump has not completedits delivery-stroke until after the other has commenced. The profile ofthe cams is so designed that during the simultaneous deliveries of thetwo pumps the combined discharge will be the same as when one pump onlyis'delivering.

Fig. 9 gives a graphic representation of what has just been described.

If along an m be set off abscissae proportional to the angulardisplacements of the shaft 15 and ordinates, such as y, proportional tothe discharge from each pump-cylinder, a curved or polygonal figure isobtained, an mop representing the discharge of one of the pumps and m n0"p' for the other, the lengths m m or p p on the base-line a; wcorresponding to a half -revolution of the shaft. During the period 212p) when the two pumps discharge at the same time we have a b (dischargefrom the first pump) plus a a (discharge from the second pump) equals ad equals y equals a constant. It is the anamorphosis of this figure thata suitable profile for the actuatingcams is determined.

Figs. 3 and 4 show the method of operation of the cams 14 on thepistons. They operate by the intermediary of rollers 16, ofconnecting-rods 17 and levers 23, pivoted at 21. The pivot 21 isarranged at the end of a supporting-lever 18, secured by pins to theshaft 20, which carries on the exterior end a lever or operating-crank19, which permits of an angular displacement of the lever 18. By movingthe pivot 21 of this lever nearer to or farther away from the piston thestroke of this latter, and in consequence the delivery, can be altered.A spring 22 acting on the lever-arm 24 serves to insure contact betweenthe roller 16 and the cam 14 and at the same time to prevent all play inthe transmission. This spring can alternatively be situated in thepump-cylinder, below the piston, tending to thrust it upward. The cams13 operate the movement of the slide-valves by the intermediary oflevers 25, pivoted onto the extremity of the supportinglevers 26, whichare mounted freely on the axis 20. These cams cause the reversal of themovement of the slide-valves at the instant when the pistons 1 are atthe bottom of their stroke-that is to say, at the points 8 and t of thecam 14. The working of the apparatus is as follows: The shaft 15 isconnected with the shaft of the motor, as has been said already, by atransmitting mechanism which provides a suitable multiple of speed. Bythe position of the lever 19 operating on the support 18 the dischargerequired for each cylinder is adjusted. The position of the lever 19 canthus be gradu-. ated for the various combustible liquids which requiredifferent dischargespure alcohol,

carbureted alcohol, volatile essences, &c. The lever 19 is then fixed byany suitable detaining device. On the transmitter which operates theshaft 15 can be arranged a clutchcoupling or other arrangementcontrolled by a regulator for connecting the apparatus or putting it outof gear, and thus obtain full power or, by cutting off the liquidhydrocarbon, no power. The lever 19 can also be controlled by aregulator to modify the discharge by connecting, if there is space, thedisplacement of this lever with the arrangements for regulating theadmission or obstruc-- tion of the air-supply. To set it in workingorder with a liquid which requires a preliminary heatingpure alcohol,for examplethe apparatus 12,0f constant level, is cutoff by means of anysuitable arrangement 27. The emptying of the liquid is effected by theconepointed screws 9 10, and the chamber 28 is filled with a morevolatile liquidspirit essence, for example. When the engine has startedworking, the pipe 11, communicating with the float-reservoir, is opened.In order to be sure of its working properly, the liquid should be at thepoint of carburizationf', Fig. 1, before starting the working of theapparatus in order to be sure that it is free from air. For this purposethe wheel 29, Figs. 3

and 8, which operates the shaft 15, is mounted freely on this latter andmoves it by means of a pawl 31 operating on a ratchet-wheel 30, pinnedto the shaft. This ratchet-wheel is made in one with a hand-wheel 32,which can be turned by hand in the direction indicated by the arrow,which allows of the apparatus being worked by hand before setting it inoperation with the motor.

Having thus fully set out my invention and the manner of its applicationand use, whatI claim as new, and desire to secure by Letters Patent ofthe United States, is-

1. A fuel-feeding mechanism comprising a fuel-reservoir, a plurality ofpumps, a supplypassage leading from the reservoir to the pumps, adischarge-passage leading from the pumps to the motor, a drive-shaft,means connecting the shaft with the pump-pistonsand so arranged as toactuate the pistons of the pumps successively, the duration of thedelivery-stroke of one pump overlapping that of another pump and theaggregate delivery of the pumps equaling the maximum delivery of onepump.

2. A fuel-feeding mechanism comprising a fuel-reservoir, two pumps, asupply-passage leading the fuel from the reservoir to the pumps under ahead, a discharge-passage leading from the pumps to the motor, adriveshaft, cams arranged on said shaft, means for actuating thepump-pistons and arranged to be operated by the cams, the cams operatingthe different pumps being so arranged relative to each other and theirrespective surfaces so proportionedthat the delivery-stroke of each pumpwill occupy a greater time than the suction-stroke and the aggregatedelivery of the pumps will be at all times equal to the maximum deliveryof one pump.

3. A fuel-feeding mechanism comprisinga fuel-reservoir, a plurality ofpumps, a supplypassage leading the fuel by gravity from the reservoir tothe pumps, a discharge-passage leading from the pumps to the motor,valves 'arranged to connect each pump-cylinder alternately with thesupply and discharge passages, a drive-shaft, cams arranged on saidshaft, means for actuating the pump-pistons and arranged to be operatedby the cams, the respective cam-surfaces being so proportioned that thedelivery-stroke of each pump will occupy a greater time than thesuction-stroke and the cams operating the diflerent pumps being soarranged relative to each other that the aggregate delivery of the pumpswill be at all times equal to the maximum delivery of one pump, andother cams carried by the shaft and arranged to operate the valves inunison with their respective pumps.

4. A fuel-feeding mechanism comprising a fuel-reservoir,'=a plurality ofpumps, asupply=- passage leading the fuel from the reservoir to thepumps, a discharge-passage leading from the pumps to the motor, adrive-shaft, cams arranged on said shaft, levers each having one armconnected with a pump-piston, links connected with the other arm of eachlever and arranged to be actuated by the came, the cams being soarranged relative to each other and their respective surfaces soproportioned that the duration of the delivery-stroke of one pump willoverlap that of another pump and the aggregate delivery of the pumpswill equal the maximum delivery of one pump.

5. A fuel-feeding mechanism comprisinga fuel-reservoir, a plurality ofpumps, a supplypassage leading the fuel from the reservoir to the pump,a discharge-passage leading from the pump to the motor, adrive-shafacams arranged on said shaft,- levers each having one armconnected with a pump-piston, links connected with the other arm of eachlever. and arranged to be actuated by the cams, means for varying thedistance between the fulcrum of each lever and the point of connectionwith the piston, and the cams being so arranged relative to each otherand their respective surfaces so proportioned that the duration'of thedelivery-stroke of one pump will overlap that of another pump and theaggregate delivery of the pumps will equal the maximum delivery of onepump.

6. A fuel-feeding mechanism comprising a fuel-reservoina plurality ofpumps, a supplypassage leading the fuel from the reservoir to the pumps,a discharge-passage leading from the pumps to the motor, a drive-shaft,cams arranged on said shaft, pivotally-mounted standards, leversfulcrumed on said standards, said levers each having an arm connected bya slot with a pump-piston, means for shifting said standards to vary thedistance between the fulcrum of each lever and its point of applicationto the piston, links connected one with the other arm of each lever andarranged to be actuated by the cams, the cams operating the differentpumps being so arranged relative to each other and their respectivesurfaces so proportioned that the delivery-strokeof each pump willoccupy a greater time than the suction-stroke and the aggregate deliveryof the pumps will be constant and .equal to the maximum delivery of onepump. 4

7. A fuel-feeding mechanism comprisinga fuel-reservoir, a plurality ofpumps,a supplypassage leading the fuel from the reservoir to the pumps,a discharge-passage leading from the pumps to the motor, a drive-shaft,cams arranged on said shaft, pivotally-mounted standards, leversfulcrumed on said stand ards, said levers each having an arm connectedby a slot with a pump-piston, means for shifting said standards to varythe distance between the fulcrum of each lever. and its point ofapplication to the piston, links:

connected one with the other arm of each lever and arranged to beactuated by the-cams to cause a delivery-stroke of the pistons, yieldingmeans for returning the pistons in the direction of the suction-stroke,the cams operating the different pumps being so arranged relative toeach other and their respective surfaces so proportioned that thedeliverystrokeof each pump will occupy a greater time than thesuction-stroke and the aggregate delivery of the pumps will be constantand equal to the maximum delivery of one pump.

8. A fuelfeeding mechanism comprisinga fuel-reservoir, a plurality ofpumps, a supply- I passage leading the fuel from the reservoir.

to the pumps under a head, a discharge-passage leading from the pumps tothe motor, valves arranged to connect each pump-cylmder alternately withthe supply and discharge passages, a drive-shaft,cams arranged on saidshaft, levers each having one arm connected with a pump-piston, linksconnected with the other arm of each lever and arranged to be actuatedby the cams, means for varying the distance between the fulcrum of eachlever and the pointof connection with the piston, the cams being soarranged relative to each other and their respective surfaces soproportioned that the duration of the deliverystroke of one pumpwilloverlap that of another pump and the aggregate delivery of the pumpswill equal the maximum delivery of one pump, and other cams carried bythe shaft and arranged to operate the valves in unison with theirrespective pumps. 9. A fuel-feeding mechanism comprising afuel-reservoir, a plurality of pumps, a supplypa ssage leading the fuelfrom the reservoir to the pumps under a head, a discharge-passageleading from the pumps to the motor, sliding valves arranged to connecteach pump-cylinder alternately with the supply and discharge passages, adrive-shaft, cams arranged on said shaft, .pivotallymounted standards,levers fulcrumed on said standards, said levers each having an armconnected by a slot with a pump-piston, means. for shifting saidstandards to vary the distance between the fulcrum of each lever and itspoint of application to the piston, links connected one with the otherarm of each lever and arranged to be actuated by the cams, the camsoperating-the different pumps being so arranged relative to each otherand their respective surfaces so proportioned that the delivery-strokeof each pump will occupy a greater time than the suction-stroke and theaggregate delivery of the pumps will be constant and equal to themaximum delivery of one pump, and other cams carried by the shaft andarranged to operate the valves in unison with their respective pumps.

10. A fuel-feeding mechanism comprising a fuel-reservoir, a plurality ofpumps, a supply-passage leading the fuel from the reservoir to the pumpsunder a head, a dischargepassage leading from the pumps to the motor,sliding valves carried by a plunger-rod and arranged to connect eachpump-cylinder alternately with the supply and discharge passages,

a drive-shaft, cams arranged on said shaft,pivotally-mountedstandards,leversfulcrumed on the standards, said leverseach having an arm connected by a slot with a pump-piston, means forshifting said standards to vary the distance between the fulcrum of eachlever and its point of application to the piston, links connected onewith. the other arm of each lever and arranged to be actuated by thecams, the cams operating the different pumps being so arranged relative.to each other and their respective surfaces so proportioned that thedelivery-stroke of each pump will occupy a greater time than thesuction-stroke and the aggregate delivery of the pumps will be constantand equal to the maximum delivery of one pump, pivotally-mountedstandards, le-

vers mounted on the standards, one arm of each lever operativelyconnected with a valveplunger, links connected one with the other arm ofeach valve-lever, and other cams carried by the shaft and arranged toactuate the links to operate the valves in unison with their respectivepumps.

11. A fuel-feeding mechanism comprising a fuel-reservoir, a plurality ofpumps, a supply-passage leading the fuel from the reservoir to the pumpsunder a head, a dischargepassage leading from the pumps to the motor,

sliding valves carried by a plunger-rod and arranged to connect eachpump-cylinder alternately with the supply and discharge passages, adrive-shaft, cams arranged on sai shaft, pivotally mounted standards,levers fulcrumed on said standards, said levers each having an armconnected by a slot with a pump-piston, means for shifting saidstandards to vary the distance between the fulcrum of each lever and itspoint of application to the piston, links connected one with the otherarm of each lever and arranged to be actuated by the cams, the camsoperating the different pumps being so arranged relative to each otherand their respective surfaces so proportioned that the delivery-strokeof each pump will occupy a greater time than the suctionstroke and theaggregate delivery of the pumps will be constant and equal to themaximum delivery of one pump, pivotally mounted standards, leversmounted on the standards,

one arm of each lever operatively connected with a valve-plunger, linksconnected one with the other arm of each valve-lever, and

other cams carried by the shaft and arranged to actuate the links'tooperate the valves in unison with their respective pumps, a con nectionbetween the motor and the drive-shaft, and means whereby thedrive-shaft-may be operated independently of the motor.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

Witnesses:

Loms GARDET, HANSON 0. (302m.

